JBoss AS 5 Performance Tuning will teach you how to deliver fast applications on the JBoss Application Server and Apache Tomcat, giving you a decisive competitive advantage over your competitors. You will learn how to optimize the hardware resources, meeting your application requirements with less expenditure. For most peoples needs JBoss would work adequately straight out of the box As I discussed in my Tomcat tuning section performance tuning is a complex. optimizing the performance of production applications deployed to JBoss and . JBoss AS 5 Performance Tuning will teach you how to deliver fast applications.


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In this multi-part series, Richir Choudhry, Alpesh Vaghela and Vaidyanathan Kothandaraman will be sharing their insights, tips and the best practices they employed during their efforts to enhance application performance without actually editing or refactoring any jboss as 5 performance tuning the production code.

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JBoss AS 5 Performance Tuning [Book]

This email address is already registered. Most objects are initially allocated in eden. One jboss as 5 performance tuning space is empty at any time, and serves as the destination of any live objects in eden and the other survivor space during the next copying collection.

Objects are copied between survivor spaces in this jboss as 5 performance tuning until they are old enough to be tenured copied to the tenured generation. A third generation closely related to the tenured generation is the permanent generation which holds data needed by the virtual machine to describe objects that do not have an equivalence at the Java language level.

For example objects describing classes and methods are stored in the permanent generation Use the the command line option -verbose: For example, here is output from a large server application: Writing faster applications is no longer just an option for your products; it's an imperative requirement, which you cannot ignore.


The notion of Java being "slow" in popular discussions is often poorly calibrated but, unfortunately, widely believed. The most compelling reason for this sentiment dates back to the first releases of Java Development Kit. What happened is that, ironically, even if Sun engineers were able to deliver faster JVMs release after release, jboss as 5 performance tuning Java Enterprise applications became more and more complex, and therefore so did writing fast Java applications.

In such a scenario, the architect had to take care of fewer counters and there was only one, or perhaps two protocols involved in the communications HTTP and RMI.

Tutorials for WildFly Application Server, JBoss Projects and Java Enterprise Applications

With a minimal application and web server tuning along with some DBA tips you could bring home the desired result. Also, lots of Java programming interfaces have been screened by other frameworks to simplify or enhance the productivity of the developer.

Another good example is the Hibernate framework, which has been built on the top of JDBC, and then Entities have been built on the top of Hibernate. We might continue discussing other good examples, however the truth is that each of these extra layers inevitably carry some overhead, and have their own best practices which jboss as 5 performance tuning usually unknown to the majority of developers.

Our conclusion is that today Java applications have a higher performance potential than they once did, but this needs expert hands and a solid tuning methodology to be allowed in the Eden where fast applications live.

Nevertheless, tuning Java Enterprise applications is more complex than standalone applications as it requires monitoring and configuring additional components like the application server, which acts as a container for the application, and all resources which are directly controlled by the application server.

In the next section, we are going jboss as 5 performance tuning explore all the single areas which have an impact on the performance of an enterprise application. Areas of tuning Configuration and tuning settings can be divided into four main categories: The configuration of JVM has changed a lot since the first releases of Java, and most developers are not aware that the default JVM parameters are usually not optimal for running large applications.

The application server is pretty complex stuff and at the same time, a fertile ground for optimizations for expert users. The application server contains a core configuration that is common to all applications think about the pool of thread which is responsible for invoking other componentsand also a set of Java EE services which are available for use like EJB, the web container, JMS, and so on.

We recommend at least using -XX: You may get some mileage with the other tuning parameters depending on your OS platform and application usage patterns.


This is a poor use of resources. These objects take time to create and may involve several network round trips. It cannot be safely be used for synchronously consuming messages, even in an app server.